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Oxygen Sensors

Oxygen sensors constantly monitor engine emissions and relays this data to the DME. Using these readings the computer determines the proper air/fuel mixture as well as how efficiently the catalyst system is functioning. Symptoms of a failed oxygen sensor range from an EML to poor fuel economy and severe loss of power. A failed upstream sensor will typically cause the engine to run poorly and a failed downstream sensor will typically present as a catalyst efficiency code.

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Vitesco Oxygen Sensor/Lambda Probe - 415mm - F3X 328d, E70 35d, F15 x...

T#:33446263

Part#: 13628589844

In Stock

Sale - Save 5% $ 442.99

This product was last offered at the strikethrough price on
07-14-2026

$ 420.84 USD

Add to Wish List

Qty

Sale - Save 5%

$ 442.99

This product was last offered at the strikethrough price on
07-14-2026

$ 420.84 USD

Add to Wish List

Oxygen sensors measure exhaust oxygen. Their signals are used by the vehicle computer to adjust the air/fuel ratio and test vehicle emissions. Degraded oxygen sensors reduce engine performance and fuel efficiency, and increase harmful tailpipe emissions. They can also turn on the Check Engine Light and cause a car to fail an emissions test.

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Upstream NOx Sensor

T#:56254774

Part#: 13628589846

Special Order: No Guaranteed ETA

$ 312.99 USD

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$ 312.99 USD

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Maintain peak performance and emissions compliance on your BMW with this replacement upstream NOx sensor by Febi Bilstein.

Oxygen Sensor

T#:56254780

Part#: 11787836451

Special Order: No Guaranteed ETA

$ 63.99 USD

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$ 63.99 USD

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This Febi Bilstein oxygen sensor is designed as a direct OEM-spec replacement to keep your engine management system operating with pin-point accuracy.